An electric motor is provided including: a stator assembly having a lamination stack defining poles and magnet wires wound on the poles, and a rotor rotatably arranged inside the stator assembly. A mount having a curved profile and made of non-conductive material is provided. Conductive terminals are mounted on and secured to a first surface of the mount, the conductive terminals being separated and insulated from each other via portions of the mount. A second surface of the mount opposite the first surface is mounted over to an outer surface of the lamination stack in contact therewith to align the plurality of conductive terminals longitudinally along the outer surface of the lamination stack.

A stator according to an aspect of the present invention includes a stator core having a core back in an annular shape surrounding a central axis of the stator, and a plurality of teeth extending radially inward from the core back. The stator core has a hole provided in a radially outer portion of the stator core, the hole extending in an axial direction, and a weld provided on a radially outer surface of the stator core. The weld includes a first weld provided on the radially outer surface of the stator core on a virtual line connecting the hole and the central axis as viewed in the axial direction.

In a stator, one end portion of each coil is disposed on the root side of each tooth, and other end portion of the coil is disposed on the tip end side of the tooth. A first bus bar disposed on one side in the axial direction with respect to a stator core has each of a plurality of first joining portions each extended toward the root side of each tooth and joined to the one end portion of each coil. A second bus bar disposed on one side or the other side in the axial direction with respect to the stator core has each of a plurality of second joining portions each extended toward the tip end side of each tooth and joined to the other end portion of each coil.

A rotor for an electric machine including a shaft having a first end, a second end, an outer surface and an inner surface that defines a passage extending between the first end and the second end. A plurality of rotor laminations is mounted to the outer surface of the shaft. A plurality of windings extends about the plurality of rotor laminations. The plurality of windings includes a first end turn arranged proximate the first end and a second end turn arranged proximate the second end turn. An end turn support is arranged at one of the first and second end turns. The end turn support includes a cooling circuit fluidically connected to the passage. The cooling circuit includes an outlet that directs coolant onto the one of the first and second end turns.

A base portion of a motor includes an inner bottom plate portion, a recessed portion and groove portions recessed upward from a lower surface of the inner bottom plate portion, and at least one through hole passing through the inner bottom plate portion in an axial direction. The groove portions extend from the recessed portion toward land portions of a circuit board on a lower surface of the base portion. Conducting wires are drawn out from coils above the base portion to a draw-out surface through the at least one through hole, and are passed through communicating openings and the groove portions to be soldered to the land portions. Each of the at least one through hole is covered with the sealant. Drawing the conducting wires out of the recessed portion through the groove portions prevents the sealant in the recessed portion from overflowing toward the land portions.

A fixing method for fixing a coil insulator which is provided between a stator core 5 including a back yoke 7 and a plurality of teeth 8 projecting in the radial direction from the back yoke 7, and a coil 6 wound around the stator core 5, to the stator core 5, includes preparing the stator core 5 in which a fixing hole 11 is formed corresponding to a respective one of the teeth 8, on an end face in the axial direction of the back yoke 7, and preparing a plurality of coil insulators 12 which include each a main body 14 composed of a heat-softenable insulating material and arranged on the circumference of a respective one of the teeth 8, and a fixing portion 20 which is projected in the radial direction from the main body 14 and covers the fixing hole 11. Each coil insulator 12 is arranged on the circumference of a respective one of the teeth 8 by fitting thereto. By softening the fixing portion 20 by heating to bring part of the insulating material into the fixing hole 11 and then hardening the fixing portion 20, a projection 22 for fixing the coil insulator 12 to the stator core 5 is formed.

Described herein are apparatuses, systems, and methods for a solar car. The exterior of the solar car is comprised of smoothly curved and continuous photovoltaic cells. The exterior car parts, e.g., roof, doors, hood, trunk and so forth, may include integrated photovoltaic cells, all manufactured in the shape of the corresponding car parts. The photovoltaic cells are meta-encapsulated in an edgeless manner, and may utilize superconducting anodes. A first encapsulate may be polychlorotrifluoroethylene, an extreme water barrier. A second encapsulate, e.g., silicone, may be a water barrier and shock absorber. A third encapsulate may be UV stabilized polycarbonate or low iron glass. A street legal solar car may be constructed upon an electric car chassis. A competition solar car has one or more hyper-efficient electric motors, that may utilize superconducting wire in their armatures. Superconducting wire may also be used in the vehicle chassis.

A distributed connection ring assembly can be used in a stator assembly and can integrate a neutral connector and jumping winding connections in an overmolded assembly for insulation. The stator assembly including a stator core defining a plurality of slots spaced apart from each other, a plurality of bar conductors disposed in each of the slots, and a distributed connection ring assembly secured to the jumping winding connections. The distributed connection ring assembly includes an overmolded neutral connector. The distributed connection ring assembly also includes a plurality of overmolded couplers circumferentially spaced apart from one another. The overmolded couplers are coupled to the overmolded neutral connector. Each of the plurality of overmolded couplers includes a support body and a plurality of stator conductors partially disposed inside the support body. The stator conductors are electrically connected to the jumping winding connections.

An electromagnetic unit configured for being employed in a stator of an electric machine. The electromagnetic unit is constituted by a unitary solid body, and comprises a neck portion constituted by two end extensions sufficiently spaced apart for receiving therein a portion of a driven component of the electrical machine. The end extensions define therebetween a symmetry axis. The electromagnetic unit further comprises a frame extending from the end extensions and lying on the same or parallel plane as that of the end extensions. The frame has a first frame portion extending to one side of the symmetry axis to an extent W1, and a second frame portion extending to the other side of the symmetry axis to an extent W2<W1. W1, W2 are measured perpendicular to the symmetry axis, and wherein at least the first frame portion is configured for receiving therein a coil of the electrical machine.

An armature has a plurality of armature cores arranged in a line in a first direction, coils wound on an area of the armature cores in a second direction, a carrier provided with a space in which to dispose the coils left in a third direction orthogonal to the first direction and the second direction with respect to the armature cores, and at least one mounting member to fix the armature cores and the carrier. The armature cores are fixed to the mounting member by first bolts, and the carrier is fixed to the mounting member by second bolts. The at least one mounting member, the first bolts, and the second bolts are disposed in positions not overlapping the coils when viewed from the third direction.